Boiler-brick.



- R. J. ALLEN.

BOILER BRICK.

APPLICATION FILED SEPT. 25, 1915.

1,168,697. Patented Jan. 18, 1916.

INVENTOR {\flX/ITNESSES: j fl/ By Aii orneys,

jnoiann'r a. ALLEN, or NEW YORK, Y.

I O L -BRI K- Application filedseptemoer 25, 1915. Serial No. 52,733.

Toallrwhomitmag concern: I 1

Be it known that I, ROBERT ,J ALLEN, a subject of the King of Great 'Britain,residing in the borough of ,lVIanhattan, .city, county, and State ofNewYor-k, have ,in-

vented certainnew and useful Improvements 'Theseboiler, headersmay be assumed to be f disposed in substantially. vertical positions. The outer surfaces of theseiheaderspresent .a -sinuous line '6. According. to the practice in Boiler-Bricks, of which the followingjis a specification.

.This invention has;for an object, toprovide an improved brick for i1se. in setting boilers, particularly those wherein the header to which the tubes are attached presents a sinuous conformation. Inplacing the brickwork at the headersyhaving the formation referred to itisnecessarylto chip the ends of the brick by hand and set each individual brick at its properplace. This method of procedure is not only expensive on account of the large amount of hand Work necessarily required, but is also unsatisfactory owing to the inability of the workman to chip the bricks absolutely in conformity to the curved outlines of the part against which they are to rest. This feature of disadvantage is also enhanced by the fact that all bricklayers are not sufficiently expert craftsmen to do the work with the necessary accuracy. Still a further disadvantage is the length of time necessarily employed. In buildings requiring the use of boilers, to which this present invention is applicable, when the construction work comes to the period at which the boiler is to be set, it is very desirable to advance the work rapidly. In some boilers the header is in a substantially vertical position, and the tubes are obliquely disposed with relation to the header. This not only requires that the brick be chipped to conform to the sinuosity of the header, but that the chipping also be at an angle. In other forms of boiler the tubes are perpendicular to the header, which is arranged in an oblique position relative to the vertical, in which in stance the chipped header bricks must also have an oblique disposition in the wall. My invention embodies brick for use in connection with both forms of boiler.

In the drawings accompanying this specification one practicable embodiment of the invention is illustrated.

In such drawings, Figure 1 represents in perspective one of the improved bricks, partically disposed header; Fig. 2 is a side view of the brick shown in Fig. 1; Fig. 3 is a perspective view ofthe brick designed for .use n Hconnectionewith'. an obliquely. disposed header; and Fig-A is. a .vertical cross-section through the walls providedlwith-my improved brick and boiler headers.

:In "Figs boiler headers 5. are represented.

of @boiler ,settingprior to my invention it .was necessary inflayingup thewall to'chip the; ends of the; bricks one *by. one and i set boilertubesbeing disposedobliquely to the header, present upon the opposite or respective sides of the complement of boiler tubes what in practice is referred to as right and left angles. In this view there are shown four units of sinuously formed header bricks for covering the header at each side. As a matter of fact, these units are really two pairs of similar units 7, 7-7, 7

One of the improved bricks for use in connection with the vertically disposed header is illustrated in Figs. 1 and 2. In this view the body of the brick 8 is shown provided with a beveled and sinuous edge 9 adapted to set against the sinuous outline 6 of the header and to cover a considerable portion thereof, in the illustration at least more than one complete in or out curvature. In practice I have found it desirable to make these bricks substantially eighteen inches high for use in connection with existing forms of Babcock & W'ilcox boilers. In any event the brick preferably occupies a space equal to a plurality of ordinary bricks. In the illustrated example each header brick unit is designed to occupy a vertical space equivalent to seven ordinary set brick.

W'all building at an obliquely disposed header involves, in addition to the problems discussed in connection with the vertical header, chipping to the proper level the brick which abut both sides of the obliquely disposed row of header brick. A combined header and supporting wall unit for doing away with the two brick cutting operations just referred to is illustrated in Fig. 3. The header portion 10 corresponds in height to and is designed to supplement, in the present illustrative example, seven ordinary ticular problems,

brick when set in cement. This header portion is shown provided with a sinuous edge 11 for fitting a plurality of reverse curves of the sinuous sided header.- The header brick portion is disposed obliquely .on its Wall forming body portion 12 at an'angle corresponding to the obliquity of the boiler header." The header engaging portion ofthe brick is body portion and protruding therefrom. The oblique disposition-of the header portion 10 when built up in the usual form of Copies of this patent'may be obtained tor five cents each, by addressing the Washington, D. G.

shown obliquely; disposed onrthe claims without departing from thespiritof the invention.

hat I claim is LA boiler brick provided with a sinu-' ously disposed face for engaging and conforming to the sinuous side of a boiler header,such sinuous face embodying a plurality of reverse curves, and equal in height to a plurality of ordinary brick.

2. A boiler brick comprising a body portion and a protruding portion obliquely disposed thereon, equal in height to a plurality of ordinary brick, said protruding portion being provided with a sinuously dis posed face for engaging and conforming to the sinuous side of a boiler header and embodying a plurality of reverse curves.

In 7 Witness whereof, I have hereunto signed my name in the presence of two subscribing Witnesses.

ROBERT J. ALLEN Witnesses I HENRY M. 'TURK, FRED WHITE.

Commissioner of Patents, 

